Question

In Java, we can use variadic function in the following way:

public Set packStrings(String...strings){
    for (String str : strings){
         //Do something on the str
    }

    //How to convert strings into a Set?
}

My question is, what is the type of “strings”? is it String[]?
How to put the string(s) denoted by the “strings” into Java Collection, such as Set or List?

Please kindly advise.

Thanks & regards,
William Choi

Answer 1

It’s a string array, so you can do:

Arrays.asList(strings);